This release includes an important change that allows to specify a maximum frame size for the WebSocket FrameDecoders. This helps to prevent DOS attacks and should be used in all cases as it has security impacts. See #283 for more information. Everyone who uses Netty WebSockets implementation should upgrade as soon as possible and change his code base to enforce a limit.

An other important improvement is the memory-usage optimization of the ReplayingDecoder and FrameDecoder. This two Decoders are sub-classed by many other Decoders so chances are good that you can benefit from the changes. The used memory of each instance should be down to a minimum now. For more details checkout out #280.

Beside this we had a handful of other bugfixes which are included. For the detailed list of the changes, please refer to the issue tracker page.